Garry Phebus, 61, is dying of ALS, aka Lou Gehrig's disease. He wants to end his life prematurely so his organs can be harvested while they are still healthy. It is a noble gesture, but one the medical profession cannot honor. CNN's Don Lemon speaks with Phebus, his daughter, and medical ethicist Arthur Caplan about the moral dilemma posed by Phebus' unorthodox request.